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Poseidon

Port Douglas

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About this operator

Trades as Poseidon Outer Reef Cruises; part of the Quicksilver Group.

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Ask about the sites you want to visit, recent conditions, group sizes, equipment and experience requirements.

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Make your enquiry specific to Poseidon

Use the recorded location in Port Douglas as a starting point, then ask where your proposed activity actually meets. A business address may be a shop or office rather than the boat departure. Training-agency information has not been recorded here, so ask which programme is offered before comparing courses.

Questions for your enquiry
TopicWhat to ask
TripWhich departure, vessel and proposed sites fit our dates and experience?
TrainingWhat is the exact programme, teaching schedule and process if more practice is needed?
EquipmentWhich items, sizes and familiarisation are included?
PriceCan we have an itemised quote and the current change and cancellation terms?

Questions, answered

Does YouDive verify every service at Poseidon?

No. The profile distinguishes recorded research from information that still needs confirmation. Directory inclusion is not accreditation or a safety endorsement.

Does Poseidon currently visit every linked site?

A linked site reflects a sourced directory relationship, not a live schedule. Confirm current trips, access and suitability with the operator.

How should I compare Poseidon with another provider?

Send the same brief to each: dates, group size, training, recent experience, equipment and support needs. Compare itemised inclusions and terms rather than headline prices alone.

Sources & further reading

poseidon-cruises.com.au

Other operators to compare

Same-state records ordered by shared locality, listed services and agency information. Each card explains the match. This is not a quality ranking or confirmation of availability.

Sites linked in the directory

Trips are subject to current operator schedules and conditions.

QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Advanced Bommie (Agincourt Reef)

Two huge coral towers rising from 40 m with a deep gutter – one of the sharkiest spots on Agincourt.

Boat (day trip)Up to 40 m
Details need confirmation
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Anybody's (Agincourt Reef)

Wall dive followed by a winding return through coral-lined alleys.

Boat (day trip)Depth not recorded
Details need confirmation
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Barracuda Bommie (Agincourt Reef 2)

Circling barracuda school over a coral pinnacle; excellent snorkelling on the shallow garden around it.

Boat (day trip)Up to 22 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Blue Lagoon (Agincourt Reef)

A rarely visited, hard-to-reach lagoon dived only in perfect conditions.

Boat (day trip)Depth not recorded
Details need confirmation
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Castle Rock (Agincourt Reef 1)

A 24 m exposed wall on one side and a sheltered coral garden on the other; one of the better Agincourt sites for sharks and big…

Boat (day trip)Up to 24 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Coronation Corner (Agincourt Reef 3)

Clear-water southern corner of Agincourt 3 where sharks and barracuda work the current.

Boat (day trip)Up to 25 m
QLDYouDive mascot illustration; not a photograph of the siteWall

Port Douglas

Gary's Gut (Agincourt Reef 4)

Dramatic 5–40 m wall with large fan corals and soft corals – the deepest dive on Agincourt 4.

Boat (day trip)Up to 40 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Harry's Bommie (Agincourt Reef 4)

Instructors' favourite garden of pinnacles regularly visited by juvenile grey reef sharks and occasionally mantas.

Boat (day trip)Up to 16 m
QLDYouDive mascot illustration; not a photograph of the siteDrift

Port Douglas

Helm's Deep Drift (Agincourt Reef 2)

Tidal channel drift between Agincourt reefs 2A and 2B with grey reef sharks, turtles and barramundi cod.

Boat (day trip)Up to 25 m
QLDYouDive mascot illustration; not a photograph of the siteDrift

Port Douglas

Horseshoe Reef (Agincourt Reef 2)

Drift along a wall covered in shimmering blue fusilier schools with trevally and mackerel hunting through them.

Boat (day trip)Up to 20 m
QLDYouDive mascot illustration; not a photograph of the siteWall

Port Douglas

Izzy's Wall (Agincourt Reef 2)

Steep 5–30 m wall with juvenile grey reef sharks and turtles; often run as a drift.

Boat (day trip)Up to 30 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Nobody's (Agincourt Reef)

Wall, fish-covered bommies and a sandpit in one quiet dive.

Boat (day trip)Depth not recorded
Details need confirmation